208 
The Aberystwyth Area 
(a) 
(&) 
(e) 
lands). 
(d) 
(e) 
(/) 
(9) 
Salt marsh 
Lowland peat bog 
Lowland arable and pasture land (Coastal Lowlands and Up- 
Dyfi Flats. 
Wooded valleys (Fall Lands, etc.). 
Rough hillside arable and pasture (largely undrained). 
Upland peat bog 
Upland sheep pasture 
Lligh Plateau. 
All these possess their own types of sheep farming and peculiarities 
having a bearing on the distribution of this disease. Many farms 
have a very great vertical range and include several (or even all) of the 
above types; while others may be confined to one only. 
The following are the more usual types of sheep farming: 
1. Lowland farms keeping a standing ewe flock which never leaves 
the place. 
2. Lowland farms keeping a standing flock, but sending all (or 
most) to some mountain “walk” for the summer. 
3. Lowland farms merely taking in lambs to “Tack” for the winter 
months, either from mountain sheep walks within the Area; or from 
Brecon, Radnor, etc., the sheep being from one to several days on the 
road. 
4. Lowland farms buying in a fresh (wholly or in part) flock each 
autumn. 
5. Farms combining any of the above, and possibly, in addition 
buying in a lot of wethers to fatten for the butcher. 
6. Farmers holding both upland and lowland farms, and working 
the sheep up and down as may be needful besides, perhaps taking in 
“Tack” sheep on both places for “wintering” and “summering.” 
7. Mountain sheep farms which: 
(a) Keep wethers on the high hill all the year, until they 
are three or even four years of age, and send down the yearlings 
to the lowlands each winter. 
( b) Sell their lambs out annually, keeping only a proportion 
of young ewes. 
(c) Supply drafts of ewes to lowland flocks, and keep the 
wethers. 
(d) Variously combine the above and take in lowland sheep 
for the slimmer, etc., etc. 
